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  • 2005-2009  (2)
  • 1965-1969  (14)
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  • 1
    Electronic Resource
    Electronic Resource
    Use of sulfur hexafluoride to determine G(e-D2O) and relative reaction rate constants in deuterium oxide (1969)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 73 (1969), S. 1583-1584 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100725a068
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Lithium-ammonia reduction of benzofurans (1967)
    s.l. : American Chemical Society
    The @journal of organic chemistry 32 (1967), S. 2794-2797 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo01284a034
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Spectrum and kinetics of the hydroxynitromethane anion radical in pulse-irradiated alkaline nitromethane solutions (1968)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 72 (1968), S. 3382-3387 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100856a005
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Reaction of sulfur hexafluoride with hydrated electrons (1968)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 72 (1968), S. 4285-4289 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100858a058
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Benthic–pelagic coupling in the population dynamics of the harmful cyanobacterium Microcystis (2005)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 50 (2005), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: 1. In eutrophic lakes, large amounts of the cyanobacterium Microcystis may overwinter in the sediment and re-inoculate the water column in spring.2. We monitored changes in pelagic and benthic populations of Microcystis in Lake Volkerak, The Netherlands. In addition, sedimentation rates and the rate of recruitment from the sediment were measured using traps. These data were used to model the coupling between the benthic and pelagic populations and to calculate the contribution of overwintering benthic and pelagic populations to the magnitude of the pelagic summer bloom.3. Changes in the benthic Microcystis population showed a time lag of 3–14 weeks compared with the pelagic population. This time lag increased with lake depth. The largest amount of benthic Microcystis was found in the deepest parts of the lake. These observations suggest horizontal transport of sedimented Microcystis from shallow to deep parts of the lake.4. Recruitment from and sedimentation to the sediment occurred throughout the year, with highest recruitment and sedimentation rates during summer. Model simulations indicate that the absence of benthic recruitment would reduce the summer bloom by 50%.5. In spring, the total pelagic population was three to six times smaller than the total benthic population. Yet, model simulations predict that the absence of this small overwintering pelagic population would reduce the summer bloom by more than 64%.6. Reduction of the overwintering pelagic populations, for instance by flushing, may be a useful management strategy to suppress or at least delay summer blooms of Microcystis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.2005.01368.x
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  • 6
    Electronic Resource
    Electronic Resource
    Triploid Hybrids between the All-female Teleost Poecilia formosa and Poecilia sphenops (1968)
    [s.l.] : Nature Publishing Group
    Nature 219 (1968), S. 280-282 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Female of Poecilia formosa showing normal pigmentation (upper). P formosa P. sphenops triploid hybrid (lower) showing black pigmentation inherited from male parent. Nuclei of P. formosa roughly possess the same amount of DNA as P. sphenops and P. vittata which indicates that P. formosa is ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/219280a0
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  • 7
    Electronic Resource
    Electronic Resource
    Der Einfluß injizierter Aminopeptidasen und von Carboxypeptidase auf die Blutdruckwirkung von Angiotensin (1965)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 250 (1965), S. 264-265 
    Details
    ISSN: 1432-1912
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00258601
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Beeinflussung der Blutdruckwirkung von Angiotensin durch Aminopeptidasen und Carboxypeptidase (1965)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 251 (1965), S. 28-38 
    Details
    ISSN: 1432-1912
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1. The pressor effect of angiotensin II was reduced after intravenous injections or infusions in spinal cats of several aminopeptidases and carboxypeptidase A. 2. The short half life of the enzymes in cats was the reason of the relatively transient effect. The half life of leucine aminopeptidase (LAP) and aminopeptidase from pig kidneys (AP-M) was 4–6 min, of carboxy-peptidase A 50–80 min and of aminopeptidase from aspergillus (AP-Asp.) 10–20 min. 3. The increase of enzyme concentrations in the blood of cats was in correlation with the decrease of the angiotensin pressor effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00245727
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Der Einfluß von Lithiumchlorid auf die Blutdruckwirkung von Renin, Angiotensin und Noradrenalin bei Ratten (1967)
    Springer
    Journal of molecular medicine 45 (1967), S. 659-660 
    Details
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The blood pressure effect of angiotensin and renin is strongly decreased in rats treated with lithiumchloride, the effect of norepinephrine is only little diminished. In the aorta stripe preparation of lithium treated rats a reduced contraction by angiotensin is also observed. The contraction by norepinephrine is equal compared with the control group. The results demonstrate the influence of intracellular sodium concentration in the smooth vascular muscles for the blood pressure effect of angiotensin.
    Notes: Zusammenfassung Bei Ratten ist nach Lithiumverabreichung die Blutdruckwirkung von Angiotension und Renin stark, die von Noradrenalin nur gering abgeschwächt. Am isolierten Aortenpräparat von lithiumvorbehandelten Ratten ist die durch Angiotensin ausgelöste Kontraktion ebenfalls deutlich, die Kontraktion nach Noradrenalin dagegen gegenüber der Kontrollgruppe nur gering vermindert. Die Befunde sprechen dafür, daß die Blutdruckwirkung von Angiotensin von der Natriumkonzentration in der glatten Muskelzelle abhängig ist.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01747195
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Zur Regulation der Reninsekretion durch Angiotensin (1967)
    Springer
    Journal of molecular medicine 45 (1967), S. 657-659 
    Details
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In 6 out of 11 normotensive humans renin activity in peripheral venous plasma is decreased by 40% of the praeinfusion level after an angiotensin infusion continuing 30–60 minutes and raising diastolic blood pressure by 20 mm Hg. In 4 out of 8 patients with secondary aldosteronism or adrenal insufficiency and 4 out of 16 hypertensive patients plasma renin activity is increased by angiotensin infusion. Norepinephrine in pressor doses causes in part a decrease of plasma renin activity in patients with secondary aldosteronism or adrenal insufficiency and an increase in the normotensive and hypertensive groups. The negative feed back mechanism between angiotensin level in bloodplasma and renin secretion is discussed.
    Notes: Zusammenfassung Die Reninaktivität im peripheren Venenblut sinkt nach einer intravenösen Infusion von Angiotensin in Dosen, die für 30–60 min einen diastolischen Blutdruckanstieg von 20 mm Hg aufrechterhalten, bei 6 von 11 Gesunden um mehr als 40% der Ausgangswerte ab. Bei 4 von 8 Patienten mit sekundärem Aldosteronismus oder M. Addison sowie 4 von 16 Hochdruckkranken führt Angiotensin dagegen zu einem Anstieg des Plasmarenins bis auf das Doppelte. Nach einer pressorischen Noradrenalin-infusion ist die Plasmareninaktivität beim sekundären Aldosteronismus und M. Addison vermindert, bei Gesunden und Hochdruckkranken erhöht. Die Befunde werden in bezug auf einen direkten negativen Rückkoppelungsmechanismus zwischen Angiotensinkonzentration im Blut und Reninsekretion erörtert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01747194
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    Paper (German National Licenses)
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